Project "Funky Monkey"

[truckmanloco]

Have you looked at the timing it sounds like the valve is staying open and filling cylinder with fuel. Maybe thats why its not turning over to much fluid pressure in the cylinders. Then the fuel is just leaking by the rings back to the oil pan . As for the fuel in the headers maybe the exhaust valve timing be off is allowing the fuel to drain straight to the exhaust. Just my thought hope you get it fixed.